Differential Pressure
pressure measurement relative to the surrounding atmospheric pressure.
See Also: Pressure, Absolute Pressure
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Pressure Sensors
Pressure sensors have particular utility for monitoring the pressure in a fluid network. As compared with flow sensors, pressure sensors often require less cost to achieve a similar result. Pressure sensors are often fabricated using thin membranes that flex under pressure.Some pressure sensors function in a binary manner, i.e., when pressure is applied to a pressure sensor, the sensor acts to complete or break an electical circuit. Some speed cameras use them.
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PCIe 16 Bit Multi-purpose Digitizer - up to 125 MS/s on 2 Channels (Single Ended) or 2 Channels (Differential)
M2P.5961-X4
The M2p.59xx series allows recording of up to eight single-ended channels or up to four differential channels both with sampling rates of up to 125 MS/s. These PCI Express cards offer outstanding A/D features both in resolution and speed. The cards can be switched between single-ended inputs with a programmable offset and true differential inputs. If used in differential mode each two inputs are connected together reducing the number of available channels by half. The 16 bit vertical resolution have four times the accuracy compared to 14 bit cards and sixteen times the accuracy if compared with a 12 bit card. All boards of the M2p.59xx series may use the whole installed on-board memory of up to 512 MSamples completely for the currently activated number of channels.
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Pressure Switches
A variety of general purpose, electronic, mechanical, industrial, heavy duty, and OEM pressure switches in gauge, vacuum, and differential ranges with ultra low pressure options.
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Electronic Pressure Comparator
Huaxin Instrument (Beijing) Co., Ltd
When it comes to simultaneous pressure calibration for several pressure measuring instruments, electronic pressure comparator is always a great choice for most of people. The comparison calibrator features 5 pressure ports which allow simultaneous connection of 4 pressure gauges under test, making calibration more efficient and time saving. It also comes with an external air source for easy and precise pressure generation and servo valve for stable pressure control.
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High-Voltage Differential Probe, 200 MHz
N2805A
The N2805A is a 200-MHz differential probe designed to provide superior differential signal measurements with long cable length (5 m), making it ideal in an environment where extended cable length is required. The probe offers 50:1 attenuation ratio, allowing it to be used adequately for up to ±100V DC+peakAC of high voltage differential measurements with high CMRR. The differential probe has a differential input resistance of 4 MΩ and low input capacitance of 4 pF to minimize circuit loading. The probe is powered by Keysight’s oscilloscope AutoProbe interface.
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Weatherproof Pressure Transmitter
679
The Series 679 Pressure Transmitter is compatible with a wide range of gases and liquids, and is specially designed for weatherproof service (NEMA 4/IP56). The Model 679 can measure pressures with an accuracy of ±.25%. This model provides a 4-20 mA output and is field adjustable.
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SICRAM Module Pressure Probes
PP471
Module to connect pressure measuring instruments to pressure probes.
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PCIe 16 Bit Multi-Purpose Digitizer - up to 80 MS/s on 8 Channels (Single Ended) or 4 Channels (Differential)
M2P.5943-X4
The M2p.59xx series allows recording of up to eight single-ended channels or up to four differential channels both with sampling rates of up to 125 MS/s. These PCI Express cards offer outstanding A/D features both in resolution and speed. The cards can be switched between single-ended inputs with a programmable offset and true differential inputs. If used in differential mode each two inputs are connected together reducing the number of available channels by half. The 16 bit vertical resolution have four times the accuracy compared to 14 bit cards and sixteen times the accuracy if compared with a 12 bit card. All boards of the M2p.59xx series may use the whole installed on-board memory of up to 512 MSamples completely for the currently activated number of channels.
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Pressure Sensors
The output voltage changes with the absolute pressure applied to the pressure port. The gain, offset and thermal drift of the pressure sensor is digitally compensated to minimise errors and to create a single-ended, amplified output in the 0 to 5 Volt range.
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HandyScope HS4 DIFF: 25 MS/s 100MHz BW, 4 Channel, USB Differential Digital Storage Oscilloscope, Spectrum Analyzer, Voltmeter, Transient Recorder
HS4-25-DIFF
The Handyscope HS4 is the successor of the popular Handyscope HS3. Built for customers that want to extend their measuring capabilities even further, this powerful computer controlled measuring instrument now features four input channels. The HS4 has just like it's predecessor the four main measuring instruments: a Multimeter, an Oscilloscope, a Spectrum analyzer and a Transient recorder.
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T, RH, Pressure and Air Speed Transmitters
HD2001… Series
Relative Humidity, temperature, barometric pressure, air speed trasmitters with display
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Pressure Switches
Whitman controls offers the most diverse selection of pressure switches in the industry. Our diverse line of switches are used across a wide range of applications including blowers, generator sets, off-road vehicles, compressors, wafer ovens, process equipment, flow control devices, pumps, wastewater, heating and cooling systems, and numerous other applications across industries.
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Ultra Pure Pressure Switch (longbody, NEMA 4)
W117LG
The W117LG NEMA 4 Ultra Pure Stainless Steel Pressure Switches have all welded stainless steel interiors which are Helium leak checked to pass 4 x 10-9 Std cc/sec. These are the NEMA 4 rated weather-proof, liquid-resistant version of the W117G, suitable for out¬side applications or in areas of condensing humidity.
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Ambient Pressure Photoemission Spectroscopy With Nitrogen Environment
The APS04-N2-RH incorporates a tuneable deep ultra-violet (UV) source outputting 3.4 - 7.0 eV, for absolute work function and highest occupied molecular orbital (HOMO) measurements, a surface photovoltage spectroscopy (SPS) module outputting 400 - 1000 nm for Voc and Eg measurements, together with a 50 x 50 mm scanning area for planar relative work function measurements (Fermi level).
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Pressure Transmitters For Industrial Applications
Series 21 Y
KELLER AG für Druckmesstechnik
The Y-line transmitters have an extremely small temperature error. This is achieved using an additional circuit containing a temperature sensor that subdivides the temperature range into fields that are 1,5 Kelvin (K) wide.
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PCIe 16 Bit Multipurpose Digitizer - up to 40 MS/s on 4 Channels (Single Ended) or 2 Channels (Differential)
M2P.5932-X4
The M2p.59xx series allows recording of up to eight single-ended channels or up to four differential channels both with sampling rates of up to 125 MS/s. These PCI Express cards offer outstanding A/D features both in resolution and speed. The cards can be switched between single-ended inputs with a programmable offset and true differential inputs. If used in differential mode each two inputs are connected together reducing the number of available channels by half. The 16 bit vertical resolution have four times the accuracy compared to 14 bit cards and sixteen times the accuracy if compared with a 12 bit card. All boards of the M2p.59xx series may use the whole installed on-board memory of up to 512 MSamples completely for the currently activated number of channels.
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HVAC Pressure Transmitter
DP850/851
The DP850/851 transmitters are designed for low pressure measurement in HVAC applications. The DP850 is available in full scale pressure ranges as low as 0.25 inH2O and the DP851 can be ranged to 0.025 inH2O full scale. Both models are available in 4-20 mA or 0 to +5 Vdc signal output options.
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Ethernet/LXI digitizerNETBOX 16 Bit Multi-purpose Digitizer - 125 MS/s on 8 Channels, 80 MS/s on 16 Channels, 16 Single-Ended Inputs, 8 True Differential Inputs
DN2.596-16
The digitizerNETBOX DN2.59x series allows recording of one, two, four, eight or 16 synchronous channels with sampling rates of 20 MS/s up to 125 MS/s. These products offer outstanding A/D features both in resolution and speed as a remote instrument. The powerful A/D amplifier section offers 6 different input ranges, programmable offset and a software switching from single-ended (full number of input channels) to true differential (half number of input channels).
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HandyScope HS6-DIFF: 200 MS/s, 250MHz BW, 4 Channel (256MS/ch), USB Differential Digital Storage Oscilloscope, Spectrum Analyzer, Voltmeter, Transient Recorder
HS6-DIFF-200XM-W5
The only oscilloscope in the world that has:- SafeGround, differential input channels that can be switched to single ended.- CMI interface.- USB 3.0 interface, 5Gb/s data transfer- Lowest noise
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Mini Digital Output Pressure Sensors
DLV Series
The DLV Series Mini Digital Output Pressure Sensor is based on the already popular DLVR series pressure sensors. This series offers excellent perfromance over middle pressure ranges of 5 PSI to 60 PSI compared to the DLVR low pressure range products.
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Adjustable Pressure Switch
HR5500
HighReach Measuring & Controlling System Co.,Ltd
HRDP5500 Adjustable pressure switch is an integrated multi-functional product designed and produced for large-scale equipment such as domestic machine tools.
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Intelligent Pressure Display Controller
HR5300
HighReach Measuring & Controlling System Co.,Ltd
HR5300 intelligent pressure display controller is a multi-functional product integrated pressure measurement, display and control. It uses high-quality pressure sensitive components, and the millivolt signal output from the sensor is sent to the microprocessor for compensation through highly integrated analog front-end Corrected, the final result is displayed on the LED screen.
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Brake Hydraulic Pressure and Electric Parking Brake Systems Test Bench
Model BHP/EPB™
The new Model BHP/EPB™ Brake Hydraulic Pressure (BHP) and Electric Parking Brake (EPB) Systems test bench from MB Dynamics accurately measures and controls the hydraulic pressure and EPB power levels applied to brake calipers during automotive buzz, squeak and rattle (BSR) testing, as well as brake durability, stability, functional or performance testing. Varied brake pressures are applied according to timing diagrams, as well as automated or manually program-controlled repeat cycles, as required to assess brake caliper/rotor assembly noise, useful service life, and other critical performance metrics.
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High Voltage Differential Probes
High voltage differential probes provide high CMRR over a broad frequency range (up to 400 MHz) to simplify the measurement challenges found in noisy, high common-mode power electronics environments. The probe’s design is easy-to-use and enables safe, precise high voltage floating measurements.
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Diaphragm Seal for DA Series Pressure Switch
XTBX
The Series XTBX is a diaphragm seal constructed of PVC and FEP making it perfect for corrosive applications that would damage metal wetted material pressure switches. The seal is available direct mounted on all model DA pressure switches with ranges under 100 psi (6.9 bar). Ideal for commercial pool/spa applications for pump shut down due to excessive vacuum.
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Pressurized Foam Rheometer
Chandler Engineering developed an advanced tool for well completions designed specifically to measure the rheological properties of foamed systems under extended pressure and temperature conditions.
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Vacuum Pressure Transducers
MKS modular vacuum transducers feature compact size that dramatically reduces installation costs. These vacuum/pressure gauges are ideal for applications where controller size and local control are critically important. They are available as pressure transducers with an analog output, or as vacuum modules with digital communications used to transmit the pressure signal.
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Pressure Transducers & Transmitters
NOSHOK is an industry leader providing highly reliable and repeatable industrial pressure transducers and transmitters. Multiple measuring ranges, output options, process connections and electrical connections are available. NOSHOK Industrial transducers and transmitters are ideal for applications such as HVAC, hydraulics and pneumatics, injection molding machines, railroad equipment and stamping & forming presses, power generation, and aerospace equipment.
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Basic Fuel Pressure Tester Kit
FIT450
Performs running, residual, rail and flow rate pressure tests.Professional dual scale gauge reads 0-100psi and 0-700 kPa with relief valve and fuel discharge hose.
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Vacuum Interrupter Pressure Integrity Test Set
Low Drift Current is measured by applying magnetic field.





























